Central Grant Water System, LA
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (monitoring period 2023-2023). The federal action level is 15 ppb today and drops to 10 ppb in Nov 2027; EPA's health goal is 0. The latest 90th-percentile result was reported as 0 (not detected at the lab's limit). That says the sampled homes were low, not that your home has no lead service line. Check your utility's service line inventory for your address.
Who runs the water here
Central Grant Water System serves about 2,250 people through 750 service connections, which makes it a small system under EPA's size classes. It is privately owned and draws groundwater, in Grant Parish County, Louisiana. EPA system ID: LA1043013; phone on file: 318-899-1000. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Every lead result on file
Against the period ending 2022 (0 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Central Grant Water System is 5 ppb across 9 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2023 | 0 (not detected) |
| 2022 | 0 (not detected) |
| 2021 | 0 (not detected) |
| 2018 | 2 ppb |
| 2018 | 2 ppb |
| 2017 | 5 ppb |
| 2017 | 4 ppb |
| 2016 | 5 ppb |
| 2016 | 2 ppb |
Where this result ranks
Of the 802 Louisiana systems with a lead result, the median latest reading is 0.72 ppb; 4 are over 15 ppb right now and 30 have gone over at some point. Central Grant Water System's reported as 0 (not detected) sits at the 28th percentile in Louisiana and the 31st nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Nearby utilities
12 other systems share Grant Parish County; 9 of them have a higher latest lead result than Central Grant Water System. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| South Grant Water Corporation | 5,289 | 1 ppb |
| Pollock Area Water System Inc | 3,900 | 1.2 ppb |
| West Grant Water Association | 3,324 | 3 ppb |
| Town Of Colfax | 2,552 | 2 ppb |
| Red Hill Waterworks Inc. | 1,914 | 1.3 ppb |
| Town Of Pollock Water System | 1,353 | 0 (not detected) |
| Zone 2 Water System Inc. | 1,344 | 4.5 ppb |
| Village Of Montgomery Water System | 1,167 | 0 (not detected) |
| Village Of Dry Prong Water System | 1,155 | 6 ppb |
| Bob Community Waterworks | 732 | 0 (not detected) |
Your move
Look up your address in Central Grant Water System's service line inventory. If it says lead, galvanized or unknown, test your tap. If your own line is lead, replacing the private side runs about $1,200-$12,300 (EPA average about $4,700). Ask Central Grant Water System whether it covers that cost before hiring anyone - many utilities now do. Its latest copper 90th percentile is 1600 ppb (copper action level 1,300 ppb).
These figures describe homes the utility sampled, not your tap. Only your service line record or a test of your own water answers the question for your house. Why sampled homes are the worst-case ones is in the guide to reading the number. Small systems behave differently: why small systems go over more often.